nonnegotiable

Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

adj. Difficult or impossible to settle by arbitration, mediation, or mutual concession: a nonnegotiable demand.

adj. Nonmarketable.

from Wiktionary, Creative Commons Attribution/Share-Alike License

adj. Not negotiable; not subject to negotiation.

n. Something that is not negotiable.

Etymologies

non- +‎ negotiable (Wiktionary)

Examples

The second thing which I think over time, when we get past the politics and the polls, that I found I must say the most remarkable in this speech was his invocation of what he called nonnegotiable values of free speech, the nonoppression of women, religious tolerance, private property.

This suggests that Berlin cynically leaked the story to Handelsblatt to polish its international image and repair strained relations with Israel, a country whose security Chancellor Merkel has deemed "nonnegotiable" for Germany.

Ms. Merkel's assurance that Israel's security is "nonnegotiable" is further put in doubt by the fact that her party colleague, Hartmut Schauerte, had been pushing the Export Control Office to speed up the process.

The United States was building democracy, free speech, equal justice, the rule of law -- the "nonnegotiable" universal values President George W. Bush says he's fighting for today -- while one horrific conflict after another swept the Continent in the 19th century, and the two most horrible wars, and the Holocaust, were yet to come in the 20th.